At his factory in Modena, Horacio Pagani has built some of the most lust-worthy cars every made, including the stunning Huayra and the bonkers, one-of-five, $2.28 million Zonda R Evolution.

But like a many enthusiasts, Pagani isn't a brand loyalist, and has a garage full of machines mere mortals would kill to own—think Porsche Carrera GT, Ford Mustang Shelby GT500 'Eleanor,' and Ford GT. Now, thanks to YouTube user Marchettino's footage from the recent Ultracar Sports Club meet at Italy's Misano Circuit, we also know the supercar maestro owns a Porsche 918 Spyder.

ALSO SEE: LaFerrari, P1 And 918 Spyder Finally Tested Together: Video

Perhaps he's doing a bit of market research for a possible Pagani hybrid?

That would also explain why he was spied behind the wheel of McLaren's P1, though not why he could resist adding one to his formidable collection. Look out for Porsche's vanity plate in the clip.

________________________________

See more videos on our YouTube sites: The Car Connection, Motor Authority, and Green Car Reports.